17. WEATHER OVERLAY
17-3
3. Select the weather data file then click the [Open] button.
The message "Now Preparing... "appears while the file is being read, and "Now
unmounting the media" appears when the reading is completed. The [Weather
Overlay Control] dialog box shows the start and end times of the file. If the file is
too large, the message "An error occurred. The file size is too large." appears. Se-
lect a smaller file - the maximum file size is 100 MB. If there is a problem with the
file, the message "An error occurred while reading weather data file." appears.
Select another file.
4. To select a specific start time, drag the slider bar to show that time on the Count
up time indication. (The time and date can also be entered manually. Use the soft-
ware keyboard to enter the time. Click the date to show the [Set date] dialog box
to select the date.)
5. Use the [Step] drop-down list to select the time step interval, which defines how
often to refresh (non-real time) the weather display. The choices are 30 minutes,
1 hour, 2 hours, 4 hours, and 6 hours.
6. To play or pause the playback, click the Play () button.
7. To close both weather overlay dialog boxes, click the [Close] button. (The weather
overlay remains active.) To redisplay them, click the Weather overlay button.
17.4 How to Set up the Weather Overlay
The weather overlay is set
up from the [Weather
Overlay] dialog box, in the
Voyage planning mode or
the Navigation planning
mode (overlay must be
active).
1. Select a display from
the [Overlay Informa-
Time-step selection
Play button
Start and end time
of GRIB file
Slider bar
(Select playback
start point.)
Count up time
Open selected file
Clear current file
Close the weather
overlay dialog boxes
Overlay type attributes
ON/OFF
Overlay information
drop-down list
Color legend (changes
with overlay type)
Isobar display
ON/OFF
Information density
adjustment
Hide weather
overlay temporarily
To Next Page
Loading...
Need help?
General
